Feature Request: Proxy Argument

[leafcutter-au]

Firstly, thank your work on the module. Since the recent update I am having good success and low 429 issues although my number of requests is quite moderate.

I am wondering if you could add a feature to pipe all requests via an optional http proxy. Although it doesn't look like it is required at the moment it does seem like something that may be required in the foreseeable future. This would allow requests to go via a rotating proxy service.

From my limited coding experience it appears the requests.get call allows for a proxies argument.